Rolling container system

ABSTRACT

This relates to a rolling water container system that can, in various examples, be used to gather, transport, filter, store and dispense liquids such as water. The rolling water container system according to various examples of the disclosure can provide easier transportation of the water, lifting of the water container or drum, and accessibility to the inside of the drum. Additional features can assist with conservation of water by preventing water leakage from the drum and providing for near-complete emptying of the drum. Further features can include handles with greater mechanical strength.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.14/424,851, published as US. Patent Publication No. 2015/0231450, whichis a National Phase application under 35 U.S.C. § 371 of InternationalApplication No. PCT/US2013/057404 filed Aug. 29, 2013, which claims thepriority benefit of U.S. Patent Application No. 61/696,037 filed Aug.31, 2012, the contents of which are hereby incorporated by reference intheir entireties for all intended purposes.

FIELD OF DISCLOSURE

This relates generally to the improvement of the accessibility,mechanical strength, and capabilities of a rolling container system usedin the transporting, purification, dispensing and storage of liquidssuch as water.

BACKGROUND OF THE DISCLOSURE

For some people in developing countries, liquids, such as water, are noteasily accessible. Getting clean water for drinking, cooking, andcleaning can be difficult and dangerous. It can require a significantamount of time dedicated to walking, waiting in line, and a large amountof physical exertion with heavy lifting of containers that transport andstore the water. Traditionally, women and children carry containers ontheir head and/or in their arms and may need to walk several kilometersa day or more to fetch water. The large amount of time spent obtainingwater can deter children from involvement in school or other educationalactivities, and can also prevent women from carrying out domestic workand/or working to generate an income. Furthermore, the physical exertioncan take a toll on one's health, causing issues such as spinal injuries,joint pain, and complications during childbirth.

SUMMARY OF THE DISCLOSURE

A solution designed to alleviate some or all of the issues describedabove is a rolling water container system. The rolling water containersystem can be used to store, transport and dispense the water, amongother things. The rolling water container system can include a drum,barrel or other circular container that can be filled with water andthen rolled along the ground. It can be made of a sturdy outer material,such as plastic, and can have a much larger capacity (e.g., five timesas much water) as compared to traditional containers that aretransported on top of the head or carried in one's arms. This can allowfor fewer trips to the water source, and the time saved can instead bespent in school, carrying out domestic work, or at a job where incomecan be produced. The rolling water container system not only can allowfor a larger amount of water to be transported and stored, but can alsoreduce the strain on the human body that would otherwise be generated bythe heavy weight of the container on top of the head or supported by thearms. This can lead to fewer health issues and body injuries.

The design of the rolling water container system can be important inaddressing some of the issues that can arise and goals to be achieved inutilizing such a system. These issues and goals can include ensuringthat the drum of the rolling water container system is suitable for oneor more of the functions of transportation, purification, dispensing andstorage. It should be easy to transport, and water from the drum shouldbe easily accessible. Prevention of the loss of water when the drum isfilled can also be very important. Additionally, other potential issueswith the drum can include the ease of being able to clean the wheel andpreventing contamination of the water contained in the drum. This canreduce the number of health issues from waterborne illnesses. In somesituations, it may not be possible for the drum to be brought close tothe water source. For example, the drum may only be able to be broughtto the edge of an embankment, perhaps five or more feet above a watersource such as a lake or stream. In such a situation, a small hand-heldcontainer may be needed to capture water and bring it manually to thedrum. Numerous fillings of the hand-held container and numerousrepetitive trips between the water source and the drum may be necessaryto fill the drum.

Accordingly, in some examples of the disclosure, the drum can containreversed container grips for ease of lifting the drum. In some examples,the drum can be designed with shoulders on the sides to accommodatewheels or treads for ease in rolling. In some examples, the drum can bedesigned with a pour assisted gutter to help retrieve as much water aspossible in the drum when the drum is near empty. In some examples, thedrum can have a centrally mounted lid allowing for better access to theinside of the drum. In some examples, the drum design can allow for astable lean and staggered pour for easy access and controlled pour ofthe water for dispensing. In some examples, a bearing as a bushing onthe end of the handles can be employed for better handle protection. Insome examples, the handles can be attached to wheels that are then usedas hubs that lock into the drum. In some examples, the cap can bedesigned with an additional, smaller cap inside. In some examples, thelid can be designed with drum clamp and a seal. In some examples, thehandle can include a spring handle mount. In some examples, the handlecan include a locking belt. In some examples, the rolling watercontainer system can include hose and pump attachments. In someexamples, the rolling water container system can include an embeddedfiltration system. In some examples, the filtration receptacle canemploy fins. In some examples, the receptacle can have multiplereservoirs. In some examples, a base, ramp, and/or one or more taps canbe used to retrieve water from the receptacle. In some examples, therolling water container system can include a braking system.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a rolling water container system according to someexamples of the disclosure.

FIG. 2 illustrates a rolling water container system with a drum orientedon its side for transportation mode and reversed container grips locatedon the sides of the drum according to some examples of the disclosure.

FIG. 3 illustrates a drum shown with attached treaded tires according tosome examples of the disclosure.

FIG. 4 illustrates a drum oriented for storage mode and leaned againstone edge for a stable lean and a staggered pour from an opening in thedrum (not shown) according to some examples of the disclosure.

FIG. 5 illustrates a slice of a drum showing the inside of the drumdesigned with a pour assist gutter according to some examples of thedisclosure.

FIG. 6 illustrates a rolling water container system with a drum orientedon its side for transportation mode with a centrally mounted lid on theside of the drum according to some examples of the disclosure.

FIG. 7 illustrates a cap on the side of the drum containing a second,smaller cap according to some examples of the disclosure.

FIG. 8 illustrates a cross-section of the side of a drum and lid showinga seal recessed inside the lid, latched closed with a drum clampaccording to some examples of the disclosure.

FIG. 9 illustrates a close up view of one end of a handle with a bearingused as a bushing according to some examples of the disclosure.

FIG. 10a illustrates a removable handle for the rolling water containersystem with wheels attached to the end of the removable handle, allowingfor separate usage of the handle apart from the drum according to someexamples of the disclosure.

FIG. 10b illustrates a rolling water container system with a drumoriented on its side for transportation mode and the removable handle ofFIG. 10a attached with wheels locked into the drum according to someexamples of the disclosure.

FIG. 11 illustrates a rolling water container system with a drumoriented on its side for transportation mode including a spring handlemount according to some examples of the disclosure.

FIG. 12 illustrates a handle not attached to the rolling water containersystem with a handle belt locked with a clasp according to some examplesof the disclosure.

FIG. 13 illustrates a cross sectional view of a drum with a filtercoupled to an inlet according to some examples of the disclosure.

FIG. 14 illustrates a plan view of a filter for a drum inlet accordingto some examples of the disclosure.

FIG. 15 illustrates a perspective view of a drum with a filter coupledto an inlet according to some examples of the disclosure.

FIG. 16 illustrates a cross sectional view of a drum with a filtercoupled to an inlet according to some examples of the disclosure.

FIG. 17 illustrates a plan view of a drum with an unfiltered water inletand a filtered water outlet according to some examples of thedisclosure.

FIG. 18 illustrates another cross sectional view of a drum with a sackof filtering material according to some examples.

FIG. 19 illustrates still another cross sectional view of a drum with asack of filtering material according to some examples of the disclosure.

FIG. 20 illustrates a plan view of a pump for a drum according to someexamples of the disclosure.

FIG. 21 illustrates a cross sectional view of a pump for a drumaccording to some examples of the disclosure.

FIG. 22 illustrates a perspective view of a pump for a drum according tosome examples of the disclosure.

FIG. 23 illustrates a side view of a pump for use with a drum accordingto some examples of the disclosure.

FIG. 24 illustrates a perspective view of a drum having a pump with adrip irrigation system according to some examples of the disclosure.

FIG. 25 illustrates a perspective view of a drum with a chargeraccording to some examples of the disclosure.

FIG. 26a illustrates perspective and cross sectional views of astackable drum according to some examples of the disclosure.

FIG. 26b illustrates an exploded side view of the components of astackable drum according to some examples of the disclosure.

FIG. 26c illustrates a perspective view of the components of a stackabledrum in a nested configuration according to some examples of thedisclosure.

FIG. 26d illustrates a perspective view of the components of a stackabledrum in a multiple-unit nested configuration according to some examplesof the disclosure.

FIG. 26e illustrates a side view of the components of a stackable drumin a multiple-unit nested configuration according to some examples ofthe disclosure.

FIGS. 27a and 27b illustrate a three-way clamped lid according to someexamples of the disclosure.

FIGS. 28a-28j illustrate different forms for the drum according to someexamples of the disclosure.

FIG. 29 illustrates different components and configurations for a drumaccording to some examples of the disclosure.

FIG. 30 illustrates different components and configurations for a drumaccording to some examples of the disclosure.

FIG. 31 illustrates different components and configurations for a drumaccording to some examples of the disclosure.

FIGS. 32a-32m illustrate different forms for the drum according to someexamples of the disclosure.

FIG. 33 illustrates a rolling water container system including hose andpump attachments according to some examples of the disclosure.

FIG. 34A illustrates a rolling water container system including anembedded filtration system according to some examples of the disclosure.

FIG. 34B is a perspective view of the rolling water container system ofFIG. 34A when oriented in an example use configuration according to someexamples of the disclosure.

FIG. 35 is a side view of a filtration receptacle with fins according tosome examples of the disclosure.

FIG. 36 illustrates a receptacle having fins within a main reservoir,and a filtered water reservoir, according to some examples of thedisclosure.

FIG. 37 is a perspective view of the receptacle of FIG. 36 in a useconfiguration according to some examples of the disclosure.

FIG. 38A illustrates a perspective view of a rolling water containerwith a handle and a braking system according to some examples of thedisclosure.

FIG. 38B shows a brake bar across the entire width of the upper portionof handle according to some examples of the disclosure.

FIG. 38C shows a drum brake for use with the brake bar of FIG. 38Baccording to some examples of the disclosure.

DETAILED DESCRIPTION

In the following description, reference is made to the accompanyingdrawings which form a part hereof, and in which it is shown by way ofillustration specific examples that can be practiced. It is to beunderstood that other examples can be used and structural changes can bemade without departing from the scope of the disclosed examples.

This relates to a rolling container system that can, in variousexamples, be used to gather, transport, filter, store and dispenseliquids such as water. The rolling water container system according tovarious examples of the disclosure can, among other things, provideeasier transportation of the water, lifting of the water container ordrum, and accessibility to the inside of the drum. Additional featurescan assist with conservation of water by preventing water leakage fromthe drum and providing for near-complete emptying of the drum. Furtherfeatures can include handles with greater mechanical strength. Therolling water container system can include other features and canperform other functions described in further detail below.

FIG. 1 illustrates a rolling water container system according to someexamples of the disclosure. The rolling water container system cancomprise a drum 100 with a transportation handle 101 attached to thesides. The entire apparatus can be pushed or pulled using thetransportation handle while the drum rolls along the ground. Thetransportation handle can be attached to the drum during transport andalso detached from the drum to be used during storage or while the drumis being filled with water or emptied out. Access to the inside of thedrum for filling, emptying, or cleaning can be done using the cap 102,which can be sealed to prevent water from leaking.

In some examples, the drum can be designed with one or more recessedhandles. Recessed handles are shown in FIG. 2 with the rolling watersystem oriented in transportation mode with the handle 101 attached tothe drum 100 according to some examples of the disclosure. Recessedhandles 200 can be located on at least one or both the sides 201 of thedrum and an optional recessed handle (not shown in FIG. 2) may belocated at the center body 202 of the drum. These recessed handles canbe useful for handling the wheel, whether for emptying the water orlifting up the wheel. The handles can be molded to fit the size of theuser's hands and can be indented or recessed to prevent the need forextra parts to be attached to the wheel. Extra parts can lead to extracosts and also can interfere with transportation or rolling. Therecessed handles 200 are shown to be out of the way of thetransportation handle 101 in the example of FIG. 2. The location andnumber of recessed handles can be selected for dual use when the wheelis oriented upright for storage, and also on its side fortransportation.

In some examples, the design of the drum can be designed to have a shelfor shoulder on the sides of the drum to support tires, as shown in FIG.3. The shelves 300 can be flat and designed to allow for tires 301 to beseated on the shelf of both sides of the drum. This can provide severalbenefits, including ease in transportation and rolling. In particular,the tires 301 can protrude far enough from the drum to be the only areaof contact between the drum and the rolling surface, which can decreaserolling friction and making pushing or pulling the drum easier. To holdthe tires together, a net, band, or belt 302 can be used that securesthe two tires to each other. The shelf on the drum can be flat to allowfor easier cleaning of the interior surfaces of drum, but in otherexamples can include protruding grooves (e.g., rails or tracks) orslopes to better hold the tire in a secure location.

One potential problem with the drum can be the ability to control theamount and flow rate of the water dispensed, and the position of thedrum while doing so, as a water-filled drum can be quite heavy. Onesolution to this is a stable lean and staggered pour. FIG. 4 shows thedrum 100 oriented in a storage mode according to some examples of thedisclosure. A side or shoulder 400 of the drum can be tapered or angledto allow for the drum to balance and rest on the angled shoulder 400when placed on a flat surface 401 such as a table or the ground. The capcan be recessed into the other side of the angled shoulder 402, and canallow easier access to the water when the wheel is being stored. Forexample, when full, the drum 100 can rest on its flat end (where thehandle attaches), and a slight tilt of the drum (clockwise in FIG. 4)can cause water to pour from the cap on shoulder 402. As the drumpartially empties, a further tilt of the drum (further clockwise in FIG.4) may be necessary to get water to pour from the cap, but the shoulder400 makes this further tilt easier to control. The drum can even rest ina storage mode on shoulder 400 as shown in FIG. 4. As the drum continuesto empty, the drum may need to be tilted fully on its rolling side toget water to pour from the cap, but the transition from the drum restingon shoulder 400 to resting on its side is made less abrupt and morecontrollable with shoulder 400 in place. In other words, the angledshoulder 400 can provide a stable transition point and can facilitate amore controllable, staggered pour. Even when not pouring water from thedrum, the shoulder 400 can provide for an easy transition between astorage mode and a rolling mode without having to lift it.

Another potential problem with the rolling water system can be thetrapping of water in interior crevices when the drum is nearly empty.This can force users to waste the last remaining droplets or usedesperate means to retrieve the water, such as a sponge. A pour assistgutter can help alleviate this issue. FIG. 5 shows a slice of the drum100 and its interior walls according to some examples of the disclosure.The opening into the drum 500 is shown at the bottom with the drum in anorientation typical of when the last contents of the drum are beingremoved. A lip 501 can prevent droplets of water from traveling awayfrom the vicinity of the opening, and a shelf 502 can collect the lastremaining water and can be utilized to guide the water towards theopening 500. The shelf can be sloped or flat. The entire pour assistgutter can be recessed to prevent it from interfering duringtransportation.

In some examples, the cap 102 shown in FIG. 1 can be replaced with acentrally mounted lid 600, as shown in FIG. 6 according to some examplesof the disclosure. The centrally mounted lid can assist in allowingbetter access to the inside of the wheel. The lid can be larger than thecap 102 in FIG. 1. This can be ideal for situations such as cleaning orsituations that benefit from having one or both hands inside the drum,such as using a ladle or cup to scoop water out of the drum. The lid canbe either threaded or non-threaded. One advantage of the former can beimproved control and ease of manipulation, whereas simplicity can be oneadvantage of the latter. Additionally, a circular clamp can be used toeliminate the requirement for a threaded lid.

The cap 102 presented in FIG. 1 or the centrally mounted lid 600 in FIG.6 can be used for both retrieving water for drinking, cooking or otherpurposes, and in some instances can also to allow the user to reachinside the drum for various purposes. However, this can lead to issueswith contamination. For example, the user may want protection fromexternal objects when the drum is used for drinking but also access tothe inside of the drum when cleaning. This can be solved using a cap ina cap design. FIG. 7 shows a larger view of the side of the drum whenthe rolling water container system is in transportation mode accordingto some examples of the disclosure. The cap 102 is shown located nearthe attached transportation handle 101. The cap can be used to accessthe inside of the drum for cleaning, while it contains a smaller cap 700that can be used only for pouring or filling. In some examples, thesmaller cap can be incorporated into the centrally mounted lid.

One potential problem with the rolling water container system can beleaks, especially during transportation mode. The water loss due toleaks can lead to a potential shortage of water supply to the family andextra trips to the water source. An alternative example incorporates aseal that can be made of a compressible material, such as rubber. FIG. 8shows a cross-section of the lid 600 and opening of the drum 800,located on the side of the drum, according to some examples of thedisclosure. The lid can employ a groove to hold a seal 801 to preventwater from leaking out of the drum. This non-threaded example of FIG. 8can help to prevent damage to a seal that can occur such as when theuser overtightens a threaded seal, and instead a drum clamp 802 can beused. To reduce costs, the lid design of FIG. 8 can be specificallysized such that the seal and clamp components can be inexpensive,readily available household products such as a drum clamp and a pressurecooker seal. The drum clamp can then be positioned around the lid andlatched shut to the opening of the drum. This example can also help makeit easier for the lid to open and close, especially to accommodatevarying sized hands, a problem that can arise in threaded seals.

While previous examples have addressed enhancing the capabilities of thedrum, the structural strength of the handle can be important as well.The handle should be able to withstand all the pulling and pushingforces applied during transportation. Further the handle should be easyto remove and attach to the drum while also not dislocating while beingused. In some examples, the handle can use a bearing as the bushing.This is shown in FIG. 9 according to some examples of the disclosure. Around disc 900 can be used to protect the end 901 of the transportationhandle 101 from either damage to external objects and protecting theuser from being harmed by the sharp edges of the handle. The bearing 902can then lock into the round disc with the bearing snapping into thesmall holes located at the end of the handle 903.

The rolling water container system shown in FIG. 1 has itstransportation handle connected directly to the drum. The issue withthis configuration is that the transportation handle end can becomesusceptible to mechanical stresses and pressure at that one point ofcontact, leading to a weaker handle that could potentially break or loseits structural integrity. An alternative to this can be using wheels ashubs and attaching the wheels to the ends of the transportation handle,as shown in FIG. 10a and FIG. 10b according to some examples of thedisclosure. The ends of the transportation handle 101 can be connectedto wheels 1000, which can then directly lock into the lid 600. Themechanical stresses, pressure and load between the handle and drum canthen be spread over the diameter of the wheel, making the handle lessvulnerable to damage. Furthermore, in some examples, the handle can beused for multiple purposes. When the drum is not attached, a piece ofmaterial 1001 can be attached to the handle apparatus to be used as asmall cart or dolly. In another example, suspension can be incorporatedinto the wheel system.

An additional solution to the problem of pressure on the ends of thehandle can be to use a spring handle mount. The purpose of the springhandle mount can be to transfer pressure or load away from the handleand displace it to the spring. FIG. 11 illustrates this with the rollingwater container system in transportation mode and end of the handle 101connected to the spring handle mount 1100 according to some examples ofthe disclosure. This can be for situations when the user pushes or pullson the handle, causing the force to not be applied directly to theplastic lid. Without the spring handle mount, the lid and the handle canbe more susceptible to damage.

While the user is moving the drum, the transportation handle can beflimsy and lose its shape. Furthermore, the transportation handle canalso pop out of the socket in the side of the wheel. To alleviate theseissues and provide better stability and strength to the transportationhandle, a handle lock belt can be used. FIG. 12 shows a transportationhandle 101 with ends 900 used to attach to the drum according to someexamples of the disclosure. The handle lock belt 1200 can keep thehandle in the appropriate form when the drum is being rolled. A clasp1201 can be located on the belt to tighten the transportation handle forretaining its shape, and to release the tension from the belt when thetransportation handle is removed. In some examples, the belt can be aclamp or bag.

Where it is desirable to filter water before the water is poured intothe drum, a filter can be placed on the drum so that the water can befiltered while being poured into the drum. FIG. 13 illustrates anexample of such a drum 100 having a filter 110 that can be detachablycoupled to the inlet 100 a of the drum 100 according to some examples ofthe disclosure. FIG. 14 is a plan view of the filter 110 according tosome examples of the disclosure. The filter 110 can have a rim 111 and amesh 112. The rim 111 can have the shape of the contour of the inlet 100a of the drum 100 and can be covered with a rubber ring so that thefilter 110 can be fitted into the inlet 100 a without a gap. The filter110 can be detached from the inlet 100 a for cleaning.

The mesh 112 can be formed from various materials. For example, nylonmesh film is cost effective and durable. Also, the pore size of nylonmesh film can be as small as, for example, 10 μm. The mesh film canalternatively be formed of other polymers, such as polyester.

While the filter 110 has a planar shape as shown in the examples of FIG.14 and FIG. 15, the filter can also be shaped as a bag as shown in FIG.16 according to some examples of the disclosure. The bag-shaped filter120 can be kept inside the drum 100 so that the filtered water canseparated from unfiltered water while in the drum 100. The filter 120can also have a mesh 122 made of polymer such as nylon or polyester.

It is also possible to structure the drum 100 so that the user canreceive only filtered water from a dedicated outlet. As shown in FIG.17, according to some examples of the disclosure, the drum 200 can have,besides an inlet and a lid 200 b which is coupled to the inlet, afiltered water outlet 200 c on the other side of the barrel-shaped bodyof the drum 200. When the user pours in water, the user does so byopening the lid 200 b and pouring the water through the inlet. When theuser receives water, he/she uses the drinking outlet 200 c. The waterwheel 200 can also have a bag-shaped filter inside, so that filteredwater can be separated from unfiltered water inside the water wheel. Inthis way, only filtered water can come out of the outlet 200 c.

It is also possible to employ more elaborate filtering mechanisms toaugment the filtering capacity of the drum. For instance, instead of afilter made only of mesh film, the drum can have a chamber filled withactivated carbon or ceramic. Activated carbon is known to absorb manycompounds including toxic compounds. For instance, such a chamber can beformed with a sack made of polymer film (such as nylon film or polyesterfilm), as shown in FIG. 18 or plastic container as shown in FIG. 19according to some examples of the disclosure. The level of granularityof activated carbon or ceramic can depend on the desired waterpurification capacity.

In the examples of FIG. 18 and FIG. 19, the water can be filteredthrough the chamber 320 and 340 through gravity, in other words, byplacing the water wheel in an orientation so that the unfiltered wateris above the chamber 320 and 340. Alternatively, it is possible to forcethe water through the chamber with a pump.

Such pump 120, an example of which is illustrated in FIGS. 20-23according to some examples of the disclosure, can have an elongatedcylinder 121, a handle 122, a connector 123, a valve 124, and a hose125. The cylinder 121, through which the handle 122 can be inserted, canbe inserted inside the drum. Such a pump can be, for instance, a manualsuction pump, a motor-drive rotor pump, or any publicly known pump.

The cylinder 121 can be inserted through the drum via the filtered wateroutlet for contact with water if the filtered water is separated fromthe unfiltered water inside the water wheel. By placing the drumhorizontally and keeping the filtered water and unfiltered waterhydraulically connected, the unfiltered water can be pulled through thefilter with the suction force applied by the pump 120.

If the water wheel only contains filtered water, the cylinder 121 can beinserted through a hole that is created on the lid. The water can bepumped out of the water wheel through the pump 120 and dispensed throughhose 125.

The pump 121 can be connected to a drip irrigation system 400 such asthe one shown in FIG. 24 according to some examples of the disclosure,to enable the irrigation of small gardens. The type of irrigation systemis not limited to the one shown in FIG. 24, and any known irrigationsystem can be used with some examples of the disclosure. In addition,instead of drawing irrigation water out of the drum using the pump asshown in FIG. 24, the irrigation lines can be connected to an outlet atthe bottom of the drum (in a resting position), and gravity can draw thewater out of the drum and through the irrigation lines.

Also, the drum could be equipped with a charger 500 that generates andstores electricity as the drum is rotated, as shown in FIG. 25 accordingto some examples of the disclosure. Such a charger can have magnetsplaced on the side surfaces of the drum, opposite each other across therotational center of the drum, and a wire that extends from the centerof rotation of the drum. The electricity that is generated can be storedin a battery that is connected to the wire. In some examples, thecharger can be rotatably mounted against the drum, so that the rotatingdrum can rotate the charger and generates electricity. Other chargersthat can convert rotational energy from the drum to electricity can alsobe used.

Various applications may be possible using the electricity generatedfrom the rotation of the drum. For instance, a cell phone charger can beconnected to the battery, so that the user can charge his/her cell phonewhile pushing the drum around. Also, it is possible to place a heatexchanger (e.g., a cooling coil) inside the body of the drum that keepsthe water cool, and connect the water chiller to the battery.

The drum can be opened and divided into half body 200 d and half body200 e as shown in FIGS. 26a-26d according to some examples of thedisclosure. The drum body can be formed so that each half body isstackable when unused. In other words, each half body is formed so thatit can be stacked with another of the same half body. Thus, when aplurality of drums are unused, they can be stacked on top of one anotherto save the storage space. Compact storage of drums can also lowerwarehousing and shipping costs to reduce the price point of the rollingwater container system.

FIGS. 27a and 27b illustrate a three-way clamped lid according to someexamples of the disclosure. In the examples of FIGS. 27a and 27b , acentrally mounted lid without threads can be employed a seal as in FIG.8. However, instead of a circular drum clamp, FIGS. 27a and 27b canemploy a plurality of clamps made out of materials whose dimensions aretoleranced and/or utilize spring or spring-like mechanisms such thatthey can use the forces therein to snap into place over the lid.

FIGS. 28a-28j , FIGS. 29-31, and FIGS. 32a-32m illustrate differentforms for the drum according to some examples of the disclosure. In someof the examples of FIGS. 28a-28j , various corrugations, protrusions orindentations in the surface of the drums can increase the strength ofthe drums, and provide decreased rolling resistance. In some examples,the surfaces can be non-symmetric to conform to local aesthetics, or toprovide stackability (e.g., a lid of a bottom drum can fit within thebottom end of a top drum stacked on top of the bottom drum).

FIG. 33 illustrates an exemplary rolling water container system 3300including hose and pump attachments according to some examples. In theexample of FIG. 33, a flexible hose 3302 can be attached to a fillopening 3304 of the rolling water container 3306. The distal end 3312 ofthe hose 3302 can be submerged in the water source. In some examples, ahand pump 3308 can be used to draw air out of the container 3306 andpull water from the water source through the hose 3302 and into thecontainer. In other examples, a portable foot pump 3310 can be used. Thehand or foot pump can be directly coupled to the container, or attachedto the container through a flexible, airtight hose 3314. In otherexamples not shown in FIG. 33, other types of pumps or mechanisms fordrawing air out of the container can also be employed. In this manner,water can be drawn into the container, even though the container may notbe close to the water source, without the need for repetitive tripsusing a hand-held container.

In some applications, after water has been captured within the rollingwater container, it may be desirable to filter or purify the water as itis being transported back to the use site, or while at the use site.

FIG. 34A illustrates an exemplary rolling water container system 3400including an embedded filtration system according to some examples ofthe disclosure. In the example of FIG. 34A, system 3400 includes a basicrolling water container system, which in this example is implemented intwo couplable shells 3402 a and 3402 b, and filtration receptacle 3404which can fit inside the shells 3402 a and 3402 b. In this manner, thebasic rolling water container system 3402 a and 3404 b can be purchasedand used as a standalone system, and filtration receptacle 3404 can bepurchased separately, if desired, and used with system 3400. However, inother examples, the filtration receptacle 3404 can be a rollingcontainer itself, without needing to fit within the basic system 3402 aand 3402 b. It should be noted that although FIG. 34A shows shells 3402a and 3402 b as being separated into two roughly equal halves, in otherexamples the shells can be separated in a number of different ways andcan comprise any number of pieces. It should also be noted that in someexamples, shells 3402 a and 3402 b can contain apertures, shapes andfeatures to enable the filtration receptacle to fit within and beutilized through the shells. However, in other examples, system 3402 aand 3402 b can be used only as a carrier for transporting the filtrationreceptacle 3404 (or any other nested object), and the filtrationreceptacle can be removed from system 3402 a and 3402 b prior toaccessing the water at the use site.

In some examples, filtration receptacle 3404 can have fins 3406protruding inwardly from the interior surface of the receptacle. In theexample of FIG. 34A, three fins are shown, but it should be understoodthat any number of fins can be employed. The fins can contain waterfiltration or purification membranes, filters, or other material capableof filtering and purifying water passing through it. In some examples,the filters are one-way filters that allow water to flow through thefilter in substantially one direction only. In some examples, thefilters can be removed for cleaning, or replaced, via apertures 3408 inthe exterior of the receptacle. In some examples, the filtered water canbe removed through other apertures 3410.

FIG. 34B is a perspective view of the exemplary receptacle 3404 of FIG.34A when oriented in an example use configuration. In the example ofFIG. 34B, gravity can force water through fins 3406 and filters in thedirection indicated by arrows 3412, and can be removed via apertures3410. In some examples, alternative or additional filters can beemployed at apertures 3410 or separate from the apertures in in-linefilters 3414.

FIG. 35 is a side view of an exemplary filtration receptacle 3504 withfins 3506. Filters 3508 are shown within fins 3506. In some examples,when receptacle 3504 is rolled in direction 3510, water is forcedthrough the filters 3508 in the direction shown by arrow 3512 as thefins 3506 push against the water. Note that in some examples, fins 3506can have filter openings on both sides, so that regardless of whichdirection the receptacle 3504 is rolled, water can still be forcedthrough the filters 3508. Note that the shape and location of fins 3506and filters 3508 in FIG. 35 is only exemplary, and that the fins andfilters can take on different shapes, such as, for example, cylindricalfins attached to the interior walls of receptacle 3504 for holdingcylindrical filters.

Although FIG. 34A illustrates a receptacle 3404 with only a mainreservoir and fins, in other examples the receptacle can have multiplereservoirs. FIG. 36 illustrates an example receptacle 3600 having fins3602 within main reservoir 3604, and a filtered water reservoir 3606.Reservoir 3606 can be connected to fins 3602 so that water that isfiltered through the fins can be collected in the reservoir. Althoughthe receptacle 3600 in this example can result in an unbalanced roll,other benefits can be obtained from the reservoir 3606 in the filteredwater receptacle as will be discussed below.

FIG. 37 is a perspective view of the receptacle of FIG. 36 in an exampleuse configuration. In the example of FIG. 37, receptacle 3700 can besupported on base 3702. A ramp 3704 can also be employed to raise thereceptacle 3700 into position on base 3702. In the example of FIG. 37,gravity can force water through the fins and filters into reservoir3706, where it can be stored for immediate use. A tap 3708 can beinserted into an aperture in the side or bottom of the receptacle 3700(as oriented in FIG. 37) to drain the filtered water from reservoir3706. In some examples, a second tap 3710 can be inserted into anotheraperture in the main reservoir 3712 to drain unfiltered water from themain reservoir for use in situations where filtered water is not needed.

FIG. 38A illustrates a perspective view of an exemplary rolling watercontainer 3800 with a handle 3802 and a braking system. The brakingsystem can be designed so that the brakes are engaged unless the usersqueezes the handle 3804 to disengage the brakes. In this way, thecontainer 3800 can be substantially immobilized unless a user activelysqueezes the handle to release the brakes and commence rolling of thecontainer.

FIG. 38B shows a brake bar 3804 across the entire width of the upperportion 3806 of handle 3802, although other brake bar configurations canalso be employed. In the example of FIG. 38B, springs 3814 can be usedto keep the brake bar 3804 in the engaged position unless a useraffirmatively squeezes the brake bar 3804 and pulls it toward upperportion 3806 of handle 3802. If the user does squeeze the brake bar 3804to disengage the brakes, the brake bar can be pulled to the disengagedposition 3808, and while doing so, cables 3810 can be pulled indirection 3812.

FIG. 38C shows a drum brake for use with the brake bar 3804 of FIG. 38B,although in other examples different types of braking systems can beemployed. In the example of FIG. 38C, a portion of the receptacle 3800can be used as the brake drum 3814. Brake shoes 3816 can be held in anengaged position against the drum 3814 by springs 3818 until the cable(not shown) is pulled by the brake bar. It should be understood thatFIGS. 38B and 38C are only exemplary and symbolic in nature, and thatother implementations can be employed.

Therefore, according to the above, some examples of the disclosure aredirected to a rolling liquid container, comprising: a drum configuredfor containing the liquid, the drum including a center body and twosides; wherein the drum includes a first shoulder between the centerbody at one of the sides, the first shoulder configured for supportingthe drum while leaning at an angle during storage or liquid removal.Additionally or alternatively to one or more of the examples disclosedabove, in some examples the rolling liquid container further comprises asecond shoulder between the center body and the other of the sides; anda cap formed in the second shoulder for providing an aperture in thedrum. Additionally or alternatively to one or more of the examplesdisclosed above, in some examples the rolling liquid container furthercomprises a handle rotatably coupled to the sides of drum and configuredfor rolling the drum along the center body. Additionally oralternatively to one or more of the examples disclosed above, in someexamples the rolling liquid container further comprises shouldersbetween the center body and the sides for supporting rolling surfaces.Additionally or alternatively to one or more of the examples disclosedabove, in some examples the rolling surfaces are tires. Additionally oralternatively to one or more of the examples disclosed above, in someexamples the shoulders further comprise rails for retaining the rollingsurfaces. Additionally or alternatively to one or more of the examplesdisclosed above, in some examples the drum further includes a pourassist gutter, the pour assist gutter including a shelf and a capembedded in the shelf, the pour assist gutter configured for directingliquid from inside the drum onto the shelf and to the cap. Additionallyor alternatively to one or more of the examples disclosed above, in someexamples the pour assist gutter further includes a lip at a border ofthe shelf for retaining liquid on the shelf. Additionally oralternatively to one or more of the examples disclosed above, in someexamples the drum further includes an inlet and a filter coupled to theinlet for filtering liquid. Additionally or alternatively to one or moreof the examples disclosed above, in some examples the filter isbag-shaped. Additionally or alternatively to one or more of the examplesdisclosed above, in some examples the drum further includes a filteredliquid outlet. Additionally or alternatively to one or more of theexamples disclosed above, in some examples the drum further includes adetachable pump for drawing liquid through the filter. Additionally oralternatively to one or more of the examples disclosed above, in someexamples the rolling liquid container includes a filtration receptaclewithin the drum. Additionally or alternatively to one or more of theexamples disclosed above, in some examples the drum is configured forseparating into component parts to enable placement of the filtrationreceptable within the drum. Additionally or alternatively to one or moreof the examples disclosed above, in some examples the drum includesinternal fins, the finds containing filters and configured for forcingliquid through the filters when the drum is rotated. Additionally oralternatively to one or more of the examples disclosed above, in someexamples the fins include removable filters and apertures on the finsfor removing the filters. Additionally or alternatively to one or moreof the examples disclosed above, in some examples the rolling liquidcontainer further comprises a filtered water reservoir and an unfilteredwater reservoir within the drum. Additionally or alternatively to one ormore of the examples disclosed above, in some examples the rollingliquid container further comprises a detachable first tap for drainingwater from the filtered water reservoir and a detachable second tap fordraining water from the unfiltered water reservoir. Additionally oralternatively to one or more of the examples disclosed above, in someexamples the handle is detachable and the drum is configured forplacement in at least one of a storage and dispensing configuration whenthe handle is detached. Additionally or alternatively to one or more ofthe examples disclosed above, in some examples the rolling liquidcontainer further comprises a braking system in the handle, the brakingsystem including a lever and configured for immobilizing the drum unlessthe lever is engaged. Additionally or alternatively to one or more ofthe examples disclosed above, in some examples the handle is coupled towheels configured as hubs for the drum. Additionally or alternatively toone or more of the examples disclosed above, in some examples the handleis configured for use as a dolly when detached from the drum.Additionally or alternatively to one or more of the examples disclosedabove, in some examples the handles are coupled to hub torsion springs.Additionally or alternatively to one or more of the examples disclosedabove, in some examples the rolling liquid container further comprises afirst cap for the drum, the first cap oriented along a rolling axis ofthe drum, and a handle rotatably coupled to the first cap at the rollingaxis of the drum. Additionally or alternatively to one or more of theexamples disclosed above, in some examples the rolling liquid containerfurther comprises a second cap formed within the first cap. Additionallyor alternatively to one or more of the examples disclosed above, in someexamples the rolling liquid container further comprises a generatorrotatably coupled to the drum for generating electricity as the drum isrolled. Additionally or alternatively to one or more of the examplesdisclosed above, in some examples the rolling liquid container furthercomprises a charger coupled to the generator for charging a mobiledevice. Additionally or alternatively to one or more of the examplesdisclosed above, in some examples the rolling liquid container furthercomprises a refrigeration unit within the drum, the refrigeration unitcoupled to the generator for cooling liquid within the drum.

Some examples of the disclosure are directed to a rolling liquidcontainer system, comprising: a drum configured for containing theliquid, the drum including a center body and two sides; and a base forsupporting the drum in a storage position; wherein the drum includes afirst shoulder between the center body at one of the sides, the firstshoulder configured for supporting the drum while leaning at an angleduring storage or liquid removal. Additionally or alternatively to oneor more of the examples disclosed above, in some examples the rollingliquid container system further comprises a ramp coupled to the base andconfigured for supporting the drum as the drum is rolled into positionon the base.

Although the disclosed examples have been fully described with referenceto the accompanying drawings, it is to be noted that various changes andmodifications will become apparent to those skilled in the art. Suchchanges and modifications are to be understood as being included withinthe scope of the disclosed examples as defined by the appended claims.

What is claimed is:
 1. A rolling liquid container, comprising: a drumconfigured for containing the liquid, the drum including a center bodyand two sides; and a filtration receptacle within the drum; wherein thedrum includes a first shoulder between the center body and one of thesides, the first shoulder is tapered at an angle relative to the centerbody and configured to allow the drum to balance and rest on the firstshoulder at the angle during storage or liquid removal.
 2. The rollingliquid container of claim 1, further comprising: a second shoulderbetween the center body and the other of the sides; and a cap formed inthe second shoulder for providing an aperture in the drum.
 3. Therolling liquid container of claim 1, further comprising a handlerotatably coupled to the sides of drum and configured for rolling thedrum along the center body.
 4. The rolling liquid container of claim 1,the drum further including a pour assist gutter, the pour assist gutterincluding a shelf and a cap embedded in the shelf, the pour assistgutter configured for directing liquid from inside the drum onto theshelf and to the cap.
 5. The rolling liquid container of claim 4, thepour assist gutter further including a lip at a border of the shelf forretaining liquid on the shelf.
 6. The rolling liquid container of claim1, wherein the filtration receptacle is bag-shaped.
 7. The rollingliquid container of claim 1, the drum further including a filteredliquid outlet.
 8. The rolling liquid container of claim 1, the drumfurther including a detachable pump for drawing liquid through thefiltration receptacle.
 9. The rolling liquid container of claim 1,wherein the drum is configured for separating into component parts toenable placement of the filtration receptacle within the drum.
 10. Therolling liquid container of claim 1, wherein the drum includes internalfins, the fins containing filters and configured for forcing liquidthrough the filters when the drum is rotated.
 11. The rolling liquidcontainer of claim 10, wherein the fins include removable filters andapertures on the fins for removing the filters.
 12. The rolling liquidcontainer of claim 1, further comprising a filtered water reservoir andan unfiltered water reservoir within the drum.
 13. The rolling liquidcontainer of claim 12, further comprising a detachable first tap fordraining water from the filtered water reservoir and a detachable secondtap for draining water from the unfiltered water reservoir.
 14. Therolling liquid container of claim 3, wherein the handle is detachableand the drum is configured for placement in at least one of a storageand dispensing configuration when the handle is detached.
 15. Therolling liquid container of claim 3, further comprising a braking systemin the handle, the braking system including a lever and configured forimmobilizing the drum unless the lever is engaged.
 16. The rollingliquid container of claim 3, wherein the handle is coupled to wheelsconfigured as hubs for the drum.
 17. The rolling liquid container ofclaim 16, wherein the handle is configured for use as a dolly whendetached from the drum.
 18. The rolling liquid container of claim 3,wherein the handles are coupled to hub torsion springs.
 19. The rollingliquid container of claim 1, further comprising a first cap for thedrum, the first cap oriented along a rolling axis of the drum, and ahandle rotatably coupled to the first cap at the rolling axis of thedrum.
 20. The rolling liquid container of claim 19, further comprising asecond cap formed within the first cap.
 21. The rolling liquid containerof claim 1, further comprising a generator rotatably coupled to the drumfor generating electricity as the drum is rolled.
 22. The rolling liquidcontainer of claim 21, further comprising a charger coupled to thegenerator for charging a mobile device.
 23. The rolling liquid containerof claim 21, further comprising a refrigeration unit within the drum,the refrigeration unit coupled to the generator for cooling liquidwithin the drum.